Furukawa Techno Material Co., Ltd.

The Furukawa Electric Co., Ltd.

Tohoku University

Tokyo Institute of Technology

Sumio Kise

Ryosuke Kainuma

Toshihiro Omori

Toyonobu Tanaka

Misato Fujii

Koji Ishikawa

Fumiyoshi Yamashita

Kenji Nakamizo

Kenji Uruma

Keisuke Saito

Kiyohito Ishida

Hideki Hosoda

Satoshi Teshigawara

Masaki Tahara

Tomonari Inamura

Yuri Shinohara

Shingo Kawata

Misato Nakano

Toyohiko Higashida

Shigekazu Yokoyama

Ryota Morishige

Nanami Kataoka

Kouji Ishikawa

Yoshitaka Azuma

Nobuyasu Matsumoto

Yuki Noguchi

Noguchi Yuki

A Ni—Ti-based alloy material includes a matrix phase consisting essentially of a Ni—Ti-based alloy and having a B2 type crystal structure. A nonmetallic inclusion is present in the matrix phase, in which 99% by mass or more of the nonmetallic inclusion is a TiC-based inclusion having a NaCl type crystal structure, the TiC-based inclusion has a lattice misfit (δ) in a range of 0.4238 or more and 0.4259 or less. The lattice misfit (δ) is represented by Expression δ=(a1−a2)/a2, where a1 is a lattice constant (Å) of the TiC-based inclusion and a2 is a lattice constant (Å) of the matrix phase.

Ni—Ti-based alloy material, method for producing Ni—Ti-based alloy material, and wire or tube including Ni—Ti-based alloy material

A copper-based alloy material including a multiphase structure containing a matrix of a β phase and a precipitation phase of a B2-type crystal structure dispersed in the matrix, where the copper-based alloy material includes a composition containing 8.6 to 12.6% by mass of Al, 2.9 to 8.9% by mass of Mn, 3.2 to 10.0% by mass of Ni, and Cu.

Copper-based alloy material, production method therefor, and members or parts made of copper-based alloy material

A formed body of Cu—Al—Mn-based shape-memory alloy may include a screw portion, wherein the screw portion is a form-rolled portion. A method for producing a formed body of Cu—Al—Mn-based shape-memory alloy may involve forming a screw portion having superelasticity by plastically working at least a portion of a material for the formed body with form-rolling in a state that a crystal structure is an A2-type structure and then, subjecting heat-treatment so as to convert the A2-type crystal structure into an L-type crystal structure. The screw portion can be formed with good working property, and has excellent fatigue resistance and breaking resistance.

Formed body of Cu—Al—Mn-based shape-memory alloy and method for producing same

A Ti&#x2014;Ni-based alloy, which has a torsion angle for Interface I that is a junction plane between habit plane variants of a martensitic phase, of less than 1.00&#xb0;; a wire, an electrically conductive actuator, and a temperature sensor, each of which uses that alloy; and a method of producing the Ti&#x2014;Ni-based alloy.

Ti&#x2014;Ni-based alloy; wire, electrically conductive actuator, and temperature sensor, each using this alloy; and method of producing a Ti&#x2014;Ni-based alloy

A Cu&#x2014;Al&#x2014;Mn-based alloy material () having a composition comprising: given contents of Al and Mn, and a given total content of at least one selected from Ni and the like; with the balance being Cu and unavoidable impurities, wherein the alloy material has a shape elongated in the working direction (RD), wherein a grain length ain the RD is R/2 or less to the width or diameter (R), a grain length bin a direction perpendicular to the RD is R/4 or less, and the amount of grains X () is 15% or less, and wherein a grain length a in the RD and a grain length b in the direction perpendicular to the RD satisfy: a&#x2265;b, and an angle formed by the normal line of the (111) plane and the RD is 15&#xb0; or larger, the amount of grains Y' () is 85% or more.

Cu-Al-Mn-based alloy material, method of producing the same, and rod material or sheet material using the same

A Fe-based shape memory alloy material, containing 25 atom % to 42 atom % of Mn, 9 atom % to 13 atom % of Al, 5 atom % to 12 atom % of Ni, and 5.1 atom % to 15 atom % of Cr, with the balance being Fe and unavoidable impurities; a method of producing the same; and a wire material and sheet material composed of the alloy material.

Fe-based shape memory alloy material and method of producing the same

A wrought material containing a Cu&#x2014;Al&#x2014;Mn-based alloy, in which an existence frequency of a coincidence grain boundary with a &#x3a3; value of 3 or less is 35% or more but 75% or less, and which has a recrystallized microstructure substantially formed from a &#x3b2; single phase; and the use thereof.

Wrought material comprising Cu&#x2014;Al&#x2014;Mn-based alloy excellent in stress corrosion resistance and use thereof

A Cu&#x2014;Al&#x2014;Mn-based alloy having superelastic characteristics and having a recrystallized texture substantially formed of a &#x3b2; single phase, in which 70% or more of crystal grains is within a range of 0&#xb0; to 50&#xb0; in a deviation angle from &#x3c;001&#x3e; orientation of a crystalline orientation measured in a working direction by electron back-scatter diffraction patterning.

Cu&#x2014;Al&#x2014;Mn-based alloy exhibiting stable superelasticity and method of producing the same

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Hiratsuka, Japan

Sumio Kise